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  • Open Access

    ARTICLE

    Online Burst Events Detection Oriented Real-Time Microblog Message Stream

    Guozhong Dong1,2,*, Jun Gao3, Liang Huang4, Chunlei Shi1

    CMC-Computers, Materials & Continua, Vol.60, No.1, pp. 213-225, 2019, DOI:10.32604/cmc.2019.05601

    Abstract The rapid spread of microblog messages and sensitivity of unexpected events make microblog become the public opinion center of burst events. Online burst events detection oriented real-time microblog message stream has become an important research problem in the field of microblog public opinion. Because of the large amount of real-time microblog message stream and irregular language of microblog message, it is important to process real-time microblog message stream and detect burst events accurately. In this paper, an online burst events detection framework is proposed. In this framework, abnormal messages are detected based on sliding time More >

  • Open Access

    ARTICLE

    Message Authentication with a New Quantum Hash Function

    Yalan Wang1,2, Yuling Chen1,*, Haseeb Ahmad3, Zhanhong Wei4

    CMC-Computers, Materials & Continua, Vol.59, No.2, pp. 635-648, 2019, DOI:10.32604/cmc.2019.05251

    Abstract To ensure the security during the communication, we often adopt different ways to encrypt the messages to resist various attacks. However, with the computing power improving, the existing encryption and authentication schemes are being faced with big challenges. We take the message authentication as an example into a careful consideration. Then, we proposed a new message authentication scheme with the Advanced Encryption Standard as the encryption function and the new quantum Hash function as the authentication function. Firstly, the Advanced Encryption Standard algorithm is used to encrypt the result of the initial message cascading the… More >

  • Open Access

    ARTICLE

    Smart Security Framework for Educational Institutions Using Internet of Things (IoT)

    Afzal Badshah1, Anwar Ghani1, Muhammad Ahsan Qureshi2, Shahaboddin Shamshirband,3,4,*

    CMC-Computers, Materials & Continua, Vol.61, No.1, pp. 81-101, 2019, DOI:10.32604/cmc.2019.06288

    Abstract Educational institutions are soft targets for the terrorist with massive and defenseless people. In the recent past, numbers of such attacks have been executed around the world. Conducting research, in order to provide a secure environment to the educational institutions is a challenging task. This effort is motivated by recent assaults, made at Army Public School Peshawar, following another attack at Charsada University, Khyber Pukhtun Khwa, Pakistan and also the Santa Fe High School Texas, USA massacre. This study uses the basic technologies of edge computing, cloud computing and IoT to design a smart emergency… More >

  • Open Access

    ARTICLE

    Automatic FIBEX Generation for Migration from CAN Message Description Format to Flexray Fibex Format

    Young Hun Songa, Suk Leea, Kyoung Nam Hab, Kyung Chang Leec

    Intelligent Automation & Soft Computing, Vol.24, No.4, pp. 683-691, 2018, DOI:10.1080/10798587.2017.1302712

    Abstract Recently, FlexRay was developed to replace the controller area network (CAN) protocol in the chassis network systems to provide high-speed data transmission as well as hardware redundancy for safety. However, FlexRay network design is more complicated than with CAN protocol, which has been an in-vehicle network (IVN) standard for car manufacturers for decades, because the FlexRay has many parameters such as the base cycle or slot lengths. To simplify the FlexRay network design and assist vehicle network designers in configuring a FlexRay network, this paper presents an automatic field bus exchange format (FIBEX) generation method More >

  • Open Access

    ARTICLE

    The Research of Address Message of an Unknown Single Protocol Data Frame

    Zheng Jiea,b, Li Jianpinga

    Intelligent Automation & Soft Computing, Vol.24, No.1, pp. 139-144, 2018, DOI:10.1080/10798587.2016.1267445

    Abstract Network protocols are sets of standards for certain network communications. The identification and analysis of network protocol are of significance to network management and security. There are various technologies of protocol identification, but in the process of identification protocols, in order to simplify the identification process and improve the efficiency of protocol identification, unknown mixed multi-protocol needs to be separated into single protocol so as to make further identification. This paper presents an efficient method to determine the single protocol address message based on the previous research of separating unknown mixed data frame into single More >

  • Open Access

    ARTICLE

    Appropriateness of pediatric outpatient transthoracic echocardiogram orders following cessation of an active educational intervention

    Shae Anderson1,2, Courtney E. McCracken2, Ritu Sachdeva1,2

    Congenital Heart Disease, Vol.13, No.6, pp. 1050-1057, 2018, DOI:10.1111/chd.12679

    Abstract Objective: The educational intervention (EI) through the Pediatric Appropriate Use of Echocardiography (PAUSE) multicenter study resulted in improved appropriate‐ ness of transthoracic echocardiogram (TTE) orders at our center. The current study evaluated if this pattern persisted after cessation of EI and the potential physician characteristics influencing appropriateness.
    Design: Outpatients (≤18 years old) seen for initial evaluation during the EI (July to October, 2015) and 6‐month post‐EI (May to August, 2016) phases were included. Comparison was made between TTE rates and appropriateness ratings during EI and post‐EI phase. Association between TTE rate and appropriateness with physician characteristics (age,… More >

  • Open Access

    ARTICLE

    Dynamic Pressures on Tunnel Roofs due to Vehicle Passages

    James D. Barnes1, Ethan R. Brush1, Mark S. Newmark1, Eric E. Ungar1, *

    Sound & Vibration, Vol.52, No.4, pp. 6-8, 2018, DOI:10.32604/sv.2018.03737

    Abstract Pressure and proximity measurements made in a tunnel indicate that a typical vehicle passage produced on the tunnel roof an initial pressure increase of small magnitude, followed by a sharp and more substantial drop in pressure below atmospheric. The magnitude of the pressure drop was found to increase with smaller clearances between the vehicle top and the tunnel roof, consistent with the Bernoulli relation and the vehicle speed. The dynamic pressures potentially may have significant effects on the vibration and noise environments on the lower floors of “air rights construction” buildings that span highways. More >

  • Open Access

    ARTICLE

    Chemical Modification of Cassava Starch by Transesterification Using Vegetable Oil/Aluminum Chloride

    A.G. Gouater Issola1, A. Ngueteu Kamlo2, A.M. Cheumani Yona1,*, M. Kor Ndikontar1

    Journal of Renewable Materials, Vol.6, No.6, pp. 642-650, 2018, DOI:10.7569/JRM.2018.634108

    Abstract Chemical modification of cassava starch by transesterification of a vegetable oil (palm kernel oil) using aluminum chloride as a Lewis acid catalyst was achieved under relatively mild conditions (temperature 60–110 °C; atmospheric pressure). The reaction was carried out without any additional solvent. The modified starch was characterized by degree of substitution (DS), FTIR, X-ray diffraction and thermal analysis. DS of 0.09 to 0.53 were obtained. The cassava starch presented an X-ray diffraction pattern of a type A starch. X-ray analyses showed that the reaction did not significantly affect the crystallinity of starch. The modified starch More >

  • Open Access

    ARTICLE

    Evidence for maternal transmission of a putative endosymbiont in the digestive gland of Pomacea canaliculata (Architaenioglossa, Ampullariidae)

    EDUARDO KOCH1,2, ISRAEL A. VEGA1,3,4, ALFREDO CASTRO-VAZQUEZ1,3,4

    BIOCELL, Vol.41, No.2-3, pp. 59-62, 2017, DOI:10.32604/biocell.2017.41.059

    Abstract The digestive gland of the apple snail Pomacea canaliculata lodges two types of pigmented corpuscles (identified as C and K corpuscles) which has been proposed as endosymbiont/s. Both corpuscular types are always present in the digestive gland of adult snails, they are released into the tubuloacinar lumen and are later expelled in the feces. On their part, hatchlings lack any C or K corpuscles in the digestive gland as well as in their feces, whereas C corpuscles appear in both the gland and feces within one week after hatching. Hence, it is possible that the… More >

  • Open Access

    ARTICLE

    Uniform Query Framework for Relational and NoSQL Databases

    J.B. Karanjekar1, M.B. Ch,ak2

    CMES-Computer Modeling in Engineering & Sciences, Vol.113, No.2, pp. 177-187, 2017, DOI:10.3970/cmes.2017.113.177

    Abstract As the data managed by applications has evolved over the years with the arrival of Web 2.0, a large number of new databases have been developed to manage various types of data. While the traditional relational databases continue to exist, NoSQL databases which are document oriented or key-value stores or columnar continue to evolve and are embraced very rapidly across the industry. It is not just the type of data handled by these databases that is different but also the query language they use is also different. This paper talks about a uniform query framework More >

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